I am struggling to prevent Windows 11 from sleeping.

I have tried every combination of:

ES_CONTINUOUS | ES_SYSTEM_REQUIRED | ES_AWAYMODE_REQUIRED

for (;;)
{
    SetThreadExecutionState(ES_SYSTEM_REQUIRED);
    // SetThreadExecutionState(ES_SYSTEM_REQUIRED | ES_CONTINUOUS);
    // SetThreadExecutionState(ES_AWAYMODE_REQUIRED)
    // SetThreadExecutionState(ES_AWAYMODE_REQUIRED | ES_CONTINUOUS);
    // SetThreadExecutionState(ES_AWAYMODE_REQUIRED | ES_SYSTEM_REQUIRED | ES_CONTINUOUS);

    Thread.Sleep(10000);
    Console.WriteLine("The current time is: " + DateTime.Now);             
}

private const uint ES_CONTINUOUS = 0x80000000;
private const uint ES_SYSTEM_REQUIRED = 0x00000001;
private const uint ES_DISPLAY_REQUIRED = 0x00000002;
private const uint ES_AWAYMODE_REQUIRED = 0x00000040;

I have tried it inside the for loop and outside the for loop.

Nothing I do stops the system from sleeping after around 3 – 5 minutes.

Is there a different way to do this in Windows 11?